Subaru rough idle after battery change



Subaru rough idle after battery change


So now I am fobbing off Subaru. Subaru of america, inc. Avoid touching the throttle to help the process. 5 liter engine and 6 speed automatic transmission may exhibit a rough idle. When the engine is started cold, regardless of the outside temperature, the idle is rough and there is a noticable power loss. It runs rough at idle, but ok with the blades engaged. Anything less means the battery is low and needs to be recharged. I asked after having the battery changed, and was told that the computer system was adept enough at recalibrating after the change to the electrical system I thought the guy was smoking crack, but I just let it idle a bit funky for a couple days, when voila right back to normal - no joke. 0L. Once your car is running again, disconnect the cable, then let your engine run for 30 minutes so that your alternator can charge up your battery again. Subaru, Legacy, 1993 Sensor the car will idle rough and die fluid change for subaru 2000 The service engine soon light was on, not sure what the code was. THIS BULLETIN CONTAINS THE INSPECTION AND REPAIR. Many newer Subarus might have a ‘check engine’ light on and ‘cruise’ light flashing after a battery change. You need to go ahead and disconnect the battery again. This DIY post will explain the most minimal way to access the timing belt for doing a timing belt change. You may want to reset your ECU because you want to clear a fault code or simply to let you ECU re-learn your settings again, say after a modification or change in fuel (octane). For those not familiar, I will explain what that means later. Clears up when opening the throttle / driving. 9 volts at idle -so I don't see that as being the underlying issue. I have a built MY2010 EJ257 engine in my 08 STi, Edwin's old engine. Faulty ECU Causes Rough Idle and Stalling in Subaru BRZ, Scion FR-S and Toyota GT86 Autopilot No-Confirmation Lane Change Option Headwave TAG Helmet and the autoevolution® logo are Our third Subaru was a Legacy 1. What would cause a Wow. First issue is my truck idles rough, when in Drive at a stop. Toyota and Lexus rough idle after battery replacement A common concern DIY Toyota and Lexus owners call CARspec for is a rough idle, starting and dying, or a hard start just after replacing or disconnecting the 12 volt starting battery. A computer is adjusting the idle speed, based on complex calculations. 1 GM’s. The relearning process depends on the PCM. Condition/Concern. The change involves the addition of a rubber end cap and If your battery has been disconnected for any reason, you may need to perform this procedure in order for the computer to relearn how to idle. The head light, black lights, and and dash lights are blinking at intervals and I cannot find the reset button to fix this and my mom has the key fob remote some where. as stated above my friend owns this car and has had this fault the last few weeksidling rough hesitating and so onsometimes cutting out at junctionsthe car is a 2000 reg subaru awd turbo,with baileys dump valve etche has no engine lights on and so onhe was advised the air maff sensor are very common on themso hes unplugged the maff while engines warm and running and the car Im posting on the dead thread again too, but im having low idle and stalling after getting a new battery, the car ran great for 10k miles and now i can't get a good idle, ive tried resetting the ecu a few times now and it keeps reverting to a low idle. TECHMAIL: Low idle after battery replacement - CAR magazine Subaru Legacy/Outback "Check Engine" Light Problems the battery and shorting the +/- cable of the car for a few seconds. Dirty Fuel Injector Modern vehicles are fitted with fuel injection systems, which inject fuel into the cylinders to create a mix of air and fuel to burn. They will collapse and leak causing a rough idle. It might take a day or two of driving in traffic before the engine will settle down again. Honda Civic: Why is My Car Shaking at Idle? If your trusty Honda Civic is shaking violently, accelerating poorly, or declining in fuel economy, diagnose and repair the problem as soon as you can. Subject: Belt Noise Rough Idle and/or SES Light with DTC P0014 and/or P0017 Models: 2004-2009 Chevrolet TrailBlazer 2004-2012 Chevrolet Colorado 2004-2011 GMC Envoy 2004-2012 GMC Canyon 2004-2009 Hummer H3 with an Inline 4, 5, or 6 Cylinder Engine (RPO Codes L52, LK5 LL8 LLR LLV) Engine belt noise, rough idle, and/or SES light with DTC P0014 and/or P0017. A bad EGR valve could cause your car to experience hard starting, a rough idle, cruise control surges, popping noises from the exhaust, backfiring and sudden engine stops with cold weather or after deceleration. It starts easily but it just idled a bit rough. In summary classic Impreza’s can be manually reset and new age Impreza’s onwards have to reset using a tool plugged in to the diagnostics port. 0. We bought it with 140. 7 Answers. Tube seals and rocker cover gaskets just replaced, new ignition cables, coil pack, spark plugs (correctly gapped), new PCV valve. Otherwise the car is great. Manufactures have removed these 2009 Escape and Mariner vehicles built before 3/5/2009 equipped with 2. The day after the pipe came off I had been driving for about 5 minutes and suddenly it started to run horribly: huge loss of power, delayed/weak response to gas pedal, trouble changing gears a couple times, whole car shakes when idle in any gear, also after coming to a stop or reving it then letting it idle the engine will start to sputter and Need help after I replaced the battery AU Falcon. Again after running only a minute and restart, it is fine. i've had this problem before after a shop reset the adaptives after having some work done, but the car reset itself after just one battery > My Subaru runs fine though. Some codes will persist. 99 Subaru Legacy Wagon Running Rough, Did Plugs,wires, Air Filter,fuel Filter & Knock Sensor Whats Wrong I had a code that the knock sensor was bad, changed that, and the code went away, but the car still runs rough at low speed as though its lagging…i put new plugs, wires, ( not cheap) air and fuel filter as well. This PI has been revised to add the 2015-2017 Model Years. See all problems of the 1996 Subaru Legacy . Re: 1. They could not find out what was wrong, it is in shop after a week for 2nd time, Subaru is aware and we have had loaner for 2 weeks now, car is unsafe, Subaru did not like when I said Class action I have a 2018 Sonata that has started to have a rough idle at times when in drive, stopped and with no HVAC on. After getting it running I was still able to retrieve all the ABS codes stored from a persistent problem. I pulled up at the lights and the car started shaking and idling really low, eventually stalling. 5L 2014, Iridium TT™ Spark Plug by Denso®. After an easy quick change, my idle is now a little rough. After the first start with the new battery the idle would be all over the place for the first 15 min. Solved 2001 subaru outback, rough idle and loss of power two weeks after head gasket change (self. 4mm Iridium and 0. 8 (1980) with gas. So everyone on hear that says a weak battery cannot cause a misfire is wrong especially with a Subaru!!! I recently ran into this exact same problem with my 2013 Subaru Impreza 2. ABS, ECUs, Power Steering, Throttle Bodies, Sat Nav and I. Then when you hook it up, turn the key on for 5-10 seconds before cranking. It's happened twice now at random times but cant replicate it. So i saw this thread and wondered if I should do it. The code definitions are a good starting point when determining the cause of the service engine light but where do you go from there? From luxury accessories to driving necessities, if it’s powered by electricity we have it in the replacement electrical parts for your 1998 Subaru Legacy. If the old alternator was bad, the battery probably needs charging badly and the additional load causes the engine to run rougher than normal (at an unloaded idle) What causes a 1990 VW Golf stall and have a rough idle after running OK for a while before the problem returned when the hoses and alternator are OK and plugs distributor cables and battery are To All previous posts on this issue. Below are the four most common. Check in the service guide for your 2002 Tahoe, where you should be able to find the spark plug wiring diagram. Otherwise try cleaning the idle air control valve and/or giving her a good seafoam treatment. Fuel pressure is stable and short and long term fuel trims are good and no lean codes even after sustained high speed pulls on back straight. It may unstick itself after a while, or it may need to be looked at. Edit: Could be due to the gas going bad, but IIRC it usually takes longer than 3 months for that to happen. Rough Idle 3. Now the engine begins to die, because the engine idle memory is now gone. For the past few weeks its had a bit of a rough idle/miss when first started after sitting for a few hours. The symptoms include stalling when coming to a stop, or very low idle after starting, or stalling if the throttle is "blipped" (opened and closed quickly). org, a Top Safety Pick The front passenger Advanced airbag senses occupant weight and seat position and will turn on or off accordingly (shown right after turning the car on). I've been told that something called an IAC valve might be the problem but Im unsure what im looking for and how to test/clean it. Engine has a rough idle. I went to the mech shop to pick up my veh after hours as shop had already I hope you changed the oil after letting it sit that long. The Idle Air Control (IAC) valve controls the engine idle speed and dashpot functions. 0L Turbo (DIT) Models SUBJECT: Reprogramming File Availability for DTC P0300 and Rough Idle INTRODUCTION This bulletin announces the availability of new reprogramming files for optimizing the ECM to address the following customer concern: Rough idle after a warm engine restart. After 5 seconds of blahp blahp blahp the idle surges then returns to normal. So I will give this a try for sure. 4-equipped cars. 000 km because we had a little accident and we want to change it for another Subaru. Also, there is a metal on metal squeek/sqeel when it is idling rough. Have recently purchased a MY04 Liberty GT Wagon and in the last few days I started to get the rough idle issue - very lumpy, almost stalling when in drive or reverse. Here's what he has done: Full oil change and filter replacement, Tire rotation, Brake inspection, cleaning and adjustment, leveling of all fluids, Full battery, starter and charging system check up (battery replaced), checked all lights and wiper blades, A/C system check, throttle pedal replacent Many newer cars with powertrain control modules (PCMs) have to relearn engine idle after a battery is disconnected. Yes I have the same issue you all do. I will try the double click start to see if it makes a difference. When the cars idle gets rough, it hard to comprehend the related causes. Also please check out the statistics and reliability analysis of Subaru Outback based on all problems reported for the Outb After you have oil pressure, connect the coil wire and start the car. Most of these notes apply to Bosch LH 2. Charging the battery now, the indicator still hasn't turned green so will leave it on over night. Problem persisted in the same manner after the replacement of the above. The driver of the vehicle may be unaware of this problem, until the battery power is lost. the turbocharger air intake duct may crack and possibly result in an engine stall. Concern typically occurs when the engine is cold, under load (such as A/C on) and in drive. The KAM or “Keep Alive Memory” is the memory that is stored in the powertrain control module (PCM). The first time it went away after the car warmed up, but today it has not fixed itself regardless of driving or engine temp. Rough idle and slight ticking sound 2001 acura mdx, mdx / 2001 acura mdx / rough idle and slight rough idle and slight ticking sound learn about your car encyclopedia go to repairpal encyclopedia recent acura mdx questions indicator that oil level is low i want to change out the a/c control dash unit so the lights on the buttons will work;. My car has an automatic transmission. com forums. I just don’t see (or haven’t seen) idle relearn issues on the cars of today. After I turn it off, I canted start it again for about 20 mins. It is intended to help you map out a troubleshooting plan. if I choke it just a little bit it smooths out, it also smooths out if I pull one of the spark plug wires. Camry :: 2007 Rough Idle After Battery Died My 07 camry's battery died last week and I got it jumped, drove about a mile and while at idle it felt as if the alternator was not charging the battery and It was slowly dying. 2002 Forester that surges/hesitates/jolts with a rough/low/oscillating idle By peterh , October 19, 2005 in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX Recommended Posts After resetting my battery terminals yesterday while wiring some switches, I turned my truck on and it immediately stalled and died. Subaru - Outback :: Rough Idle And Lots Of Vibration After A Timing Belt Change My wife and I recently bought a 2005 Subaru Outback 2. 7mm Platinum Twin-Tip Technology. Rough Idle When Starting Cold, Then Goes Away When Engine Is At Operating Temperature More Details Below I have an older, low mileage vehicle with a V8 engine. The removal of electrical power from the engine erases idle memory from the PCM, the computer where it is stored. When the battery goes dead or is disconnected the new "base idle" is lost from the computer memory. Shakes or Wobbles problem 2002 Subaru Outback 4 cyl All Wheel Drive Automatic 106*** miles 2002 outback 2. To see how frequently Subaru Legacy problems occur, check out our car reliability stats. 8L Rough Idle discussion at the Automotive. What Causes a Car to Run Rough? Reasons for a car running rough can include problems with the engine temperature or oxygen sensors, bad hoses, ignition system or timing problems, clogged air or fuel filters, and faulty spark plugs or fuel injectors. Please fill out the sections with "X" corresponding to / / XV Crosstrek HYBRID(Auto start-stop / EV mode)Check Sheet When a customer experienced difficulties in getting into idle stop (Auto start-stop) mode and/or EV mode, please obtain following information for FHI's investigation. In the event you are experiencing an erratic idle after loading a tune or after performing any action that clears KAM (Keep Alive Memory), an Idle Relearn can help you get back on track. Other possible causes include faulty Engine Control Unit (ECU), prolonged oil changes, corroded wire harness, software issues, thermostat, cracked TSB List for the 2012 Subaru Impreza. Probably the most common problem that causes idle problems in multiport fuel injected engines is a carboned-up throttle body. The engine’s idle speed also changes, based on outside conditions. At approximately 45,500 miles " check engine" light came on, idle became rough, and the car exhibited signs of losing power. C. Please fill out the sections with "X" corresponding to / / The engine idle speed memory may allow the engine to run without the sensor’s input, but the PCM cannot adjust idle speed with the missing data. Subaru Outback owners have reported 67 problems related to car stall (under the engine and engine cooling category). The Crux. The Subaru in this video is a 2009 Subaru Forester. note. 6 with aircon off is around 700rpm Bear in mind though that if the battery is disconnected ( as it should be for such a job as a cambelt change) then all the stored fuel trims will be zeroed so it will take a little while for it to settle at new best settings Subaru Forester 2. Update March 2006 Subaru Impreza is a 'gold standard among small cars' from IIHS. 2002 Subaru Forester Misfire/Rough Running was created by RyanS93 Hi everyone, I wanted to get some thoughts on the problems a friend of mine is having with his 2002 Subaru Forester (2. If the car starts when cold but, idles rough or does not want to stay running, this can indicate a problem with the engine I tried to pull out vacuum hoses and see if it changes the idle, It does change abit (higher) then I put it back on and then it slightly goes down, but still 3000RPM and you can really smell the fuel. Your car's battery light is an indicator of when your car's charging system is malfunctioning. This only happens occasionally though, but it only idles rough when at 500RPM. Hence, after knowing the ways to troubleshoot rough idle when warm problem, anyone This morning (-5 to 0F, light wind), starts up fine, no stumble no "misfire" at initial startup, then once that's complete it acts a little rough, some flashing CEL at idle (likely misfire), couldn't read it with my cheap scanner I had along (was only on for a few seconds at cold idle). 2) Disconnect the battery for 30 Severe cases of stalling after replacing the battery may require that your throttle body or your idle air control valve be cleaned out. View all 158 consumer vehicle reviews for the Used 2016 Subaru Forester on Edmunds, or submit your own review of the 2016 Forester. Is your vehicle hard to start? Does it miss under load and idle rough? Is your gas COMPUTER RELEARN PROCEDURES Article Text 2001 Volvo V40 ARTICLE BEGINNING GENERAL INFORMATION 2001 Import Computer Relearn Procedures INTRODUCTION BODY CONTROLS Vehicles equipped with body, air conditioning, anti-lock brake or memory computers may require a computer relearn procedure after components are replaced or the vehicle battery is Get reliability information for the 2010 Subaru Forester from Consumer Reports, which combines extensive survey data and expert technical knowledge. I have been having a misfire problem for 4 months that no one can seem to find out the engine spun a bearing and the entire long block was rebuilt at 102***mi. After installing an oiled K&N filter a year or so back, I started having some Toyota 4Runner Forum - Largest 4Runner Forum Rear window, rough idle, low voltage - Toyota 4Runner Forum - Largest 4Runner Forum Watching the tachometer shows an idle speed around 500 to 900 RPM. the 2016 Subaru Forester Starlink Connected Services Overhead Call Buttons to use the emergency roadside assistance standard on Forester Premium, Limited, and Touring. P0303 Diagnostic Trouble Code Discussion for May 2010 Cylinder 3 Misfire Detected * Note: This is a professional automotive technician's resource. The car may idle and run normally after you get it started, but you should not have to help it start A bad throttle position sensor is the last thing that you will ever wish to have on your ride. With the battery being disconnected, the computer will need to go through re-learn. 2015-2018 Subaru Outback MAP Sensor Replacement Guide. - Hide quoted text - > > - Show quoted text - A lot of times you can clear the codes by disconnecting the negative battery cable for a couple of minutes. The Subaru BRZ and Scion FR-S (Toyota GT86) twins are a blast to drive, but only when they are running properly. My 1998 Subaru Forester is having some strange behavior in the morning during its first miles. 2 and LH2. The valve is located on the side of the throttle body. 3 gallons. How to Respond When Your Car's Battery Light Goes On. 5i - Low idle and stalling after battery disconnect (self. Below are six signs for when to change your spark plugs: When to change spark plugs: 1. After you turn the engine off, wait at least a minute, then start it again. (subaru) is recalling certain model year 2015-2016 wrx vehicles manufactured april 10, 2015, to october 21, 2015, and forester 2. My car began to have a rough idle anytime I was sitting at a sto My check engine light on my 1996 Subaru Legacy Brighton recently came on and stayed on. Right on, I don't know what they mean by 'adjusted idle stop' since there is no such thing. It Still Runs is your ultimate auto resource, whether you rotate your tires or change your oil. Any ideas? Car has 43899 miles and has been through regular service, but due now for 40k? What would cause the car to idle low after replacing the battery? My 2005 Subaru just had this problem and after some searching on the internet I found the solution. Hi, My wife's Subaru has been at the shop for months. After Spark Plug change, I have a very rough idle, Running Rich I used the spark plug DIY to help guide me along for most of it but once I put everything back together and started my car I got a pretty rough idle that felt like the engine was rumbling, I turned it off and it smells extremely rich and the check engine light/Trac light were MAP Sensor Change: 24. I checked the terminals and secure as could be and then checked my alternator, all ok. The first time it started happening i drove it straight to the mechanic. New Age (Denso) ECU In some high-mileage cars, the engine may run rough at idle or even stall after replacing the battery. Idle Surge) For those of you who may have missed the thread regarding my idle surge, here's a brief summary: - One hot Saturday in June, I was driving happily along the freeway. I dont know How to Do an Idle Relearn. This valve allows the necessary amount of air, as determined by the Powertrain Control Module (PCM) and controlled by a duty cycle signal, to bypass the throttle plate in order to maintain the proper idle A reading of 12. ALSO SEE: 2015 Subaru Outback: First Drive The vehicles involved in this technical service bulletin include the General Auto Repair - 2013 GMC Savana 4. I reset the ECU, and now the car runs rough! Why? The engine may run rough or idle poorly right after ECU reset. We know people love carrying kids in them, drifting when u change the battery how do u reset the engine to idle at the right rpm - it doesn't wanna start and it dies out After you change the battery let your car 2006 Impreza 2. Car Maintenance, Repairs, and How-Tos. E, Instrument clusters From stock or your faulty unit rebuilt with a LIFETIME WARRANTY If you are installing spark plugs after someone else removed them, they might have numbered the plugs as they were removed. Toyota has acknowledged the issues and, after some troubleshooting, blames them on a software mapping glitch, rather on […] Anyone have any problems with their TB after replacing the battery? After replacing new battery, drove off and turn on A/C and RPM began to drop significantly and eventually stalled on me. This issue has been ongoing since Spring 2009. 0xt vehicles manufactured april 10, 2015, to october 20, 2015. Also includes links to relevant forum topics on the code. Problems with idle speed—things like slow idle, fast idle, rough idle, or stalling after idling for a few seconds—are symptoms that something is wrong with your engine. subaru rough idle after battery change. All ignition and fuel system testing pass and there are no DTCs. The idle condition improves slightly once the engine reaches operating temperature, but still appears rough. 1) Turn off the lights, aircon, stereo or any system in the car that draws extra current on top of the engine. The service manager told me that Subaru has known about this problem for a year and a half and still has no known fix for this lost power and rough engine problem which they say is due to carbon build up in the engine. i changed my battery today in my 2005 subaru outback with manual trans and i forgot to put a memory saver in before i The cars I saw a dramatic idle relearn indications on (after replacing the battery) were eary 90’s 2. 1. Of course, it will also clear your settings on the radio. TROUBLESHOOTING HINTS (The most likely causes for this case:) Malfunction of the ignition Subaru Check Engine Light Codes. 2l 6 cyl. 5 SOHC 4-cylinder, 5-speed manual, 120k miles). Replaced my car battery 1 week ago and my fuel consumption is over the chart (21litres per 100km) usually would be around 10-12 litres. 5L engine After reconnecting battery on a subaru outback car idles too low After fitting clutch & reconnecting battery, the car almost stalls on road test, idle is now too low, is there an idle relearn on these models ? cheers Battery changes causes car to "shudder" and the computer definitely had to relearn its idle control after a battery change/discharge. Last week, we had the timing belt changed by a mechanic I've gone to for the past four years and trust a great deal. A lot of possible answers already, but only a few seem highly likely to me. According to reports, many owners have complained about rough idle and stalling conditions in their cars. It would idle very low for The Scion FR-S and Subaru BRZ twins have been some of the most acclaimed driver's cars we've seen since the original Mazda Miata hit the road. If not, all is not lost. Anyway coming back from uni last Thursday, it started fine, drove it for about 20 mins (constant at 80-90km/h), came to a stop at a set of lights and it started idling really rough like it Idles rough, distinct misfire visible (engine shakes/car vibrates) and audible at idle. After about 15 minutes I put the cable back on and now the vehicle idles rough, the air conditioner will not work at idle and the service engine soon light is no longer lit but flashing instead. With the passage of time, the sensor loses its efficiency and thus has to be replaced. installed a high performance fuel pump,new battery,alternator my idle didn't really change at all. 45 volts equals about a 75% charge and is good enough for further testing. My car has 225000 miles. engine idle erratic after battery change I have a 2004 gmc envoy 4x4 4. It runs rough and we don't know why. Likely the battery was disconnected during the work; it takes the vehicle some time to relearn all its operating parameters after that. Over time the computer will "learn" a new "base idle". replaced battery. I had to dealer, they stated there was a misfire and changed one plug and coil. In the video you can see the first start and then its behavior after about 1 mile, when the engine is 2006 outback. Engine Tune and Performance: Symptoms PDF. Helpful Information Q: After replacing the battery, the engine idles very rough and will die with the air on. Engine Tune and Performance. Start it up and let it sit about 10 minutes at idle so it can relearn idle. Subaru most models Check light on but when you check code -no trouble code,hard to start and cuts out at idle This is a COMMON fault. com. In Holland it is certainly one of the Subaru's with the most kilometers. Drivers of direct-injected gasoline engines have been complaining about a rough idle and a check engine light that has been illuminating on the dash. The light and clock are on the dashboard Download Unstable Idle (Rough Idle, Hunting) 03 Mitsubishi Eclipse GT – In cases such as the above, the cause is probably the air/fuel mixture or idle air control motor. Rough Idle. 6 dynamic poor idle after change of timing belt? A warm engine tickover for my 1. The battery's state of charge doesn't tell the whole story because a fully charged battery may also be a weak or failing battery that can't provide its normal amp output under load. I've got a craftsman 22hp kohler engine mower that just started running rough out of the blue. This 2005 Subaru Legacy Engine Problems. Beware These 6 Signs Your Car Battery is About to Die. Under most circumstances, it will relearn after just driving the car for a while, but if your car continues to experience an abnormal idle, or you just don't want to wait for it to relearn on its own Every engine needs three things to run and idle smoothly without stalling: a correct air/fuel ratio, sufficient idle speed for the idle load, and a good spark. Start car and check the PCV hose that connects to intake manifold to pipe under coil. To see how frequently 2005 Subaru Legacy problems occur, check out our car reliability stats. tell customer to bring car back when check light IS on,do not switch engine off,check code while motor is running,will bring up cam sensor out of phase,replace cam and crank sensor ka24e misfiring/rough idle/white smoke smells like FUEL HELP. For this reason, some older cars may require the idle speed re-learn after the battery is replaced. ­­ Alarm kill switch will not alow car to start after battery change. Ultimate Endurance and Power. I took the car to my local mechanic who ran the obd 2 scan tool. With most cars, timing is set to top dead center on number 1 piston. subaru rough idle after battery change This happens because when the battery is disconnected, all learned settings in the engine computer, including the idle speed are reset. Subaru Legacy Engine Problems. Check engine light comes on. I was on "E" today, filled it up at my usual spot and it took 14. My wife's 1998 Subaru Outback threw a check engine light the other day, and when I read the code, P0507, it corresponded to a problem I'd noticed for a while: high idle rpms. Thanks BOD. I changed the battery and the idle is very eratic. . rough idle. Some of the symptoms of a dirty or faulty MAP sensor include a rough idle, higher fuel consumption (lower fuel economy / MPG) and hesitation or jerking while accelerating. 5i AT, and noticed a 4~5 second crank time during the next start, and a bit of a shudder at idle. Please bear with me for the first post. Abbreviations. 5 106***mi. 2005 XT 56K with manual--: Rough idle occurs with both warm or cold engine--engine will almost die when hard braking-other times, the idle will be rough and intermittent while sitting at an intersection. Cartalk) submitted 4 years ago by littleodie914 We swapped out a burnt headlight in our 2006 Impreza 2. A while back, I was swapping engines in the wife's 1995 Grand Am, so naturally I had the battery unhooked. Another thing to note is that during my first initial attempt to start the engine, after swapping out the battery, it cranked for about 4 seconds before actually starting. Over time, a large amount of carbon can build up inside these parts, pushing them beyond the limit that the computer can adapt to. Below you will find the most complete list of Subaru trouble codes available. Drives fine, accelerates fine, holds speed fine. Heads done at 172,000 miles 2002 Subaru Outback present millage 250,000. 12 to have it decarboned again. This is a general guide which will list symptoms for 944 starting and running problems and common causes of those problems. Once the "new" base idle is lost the engine will not idle properly until the computer can relearn the new base idle. It is because rough idle when warm can either be caused by one faulty component or through series of problems. What causes a rough idle? A rough idle can be caused by many different car faults. All of the minor fixes have been done. In most cases, this is caused by a blown fuse in the engine compartment fuse box. A bad PCV valve can cause excessive oil leakage and consumption. The computer will adjust for the lower idle using its idle control system. The code came back as a number 4 cylinder misfire. Any ideas anybody?? After disconnecting the battery your ECM loses its' idle point. I basically think the dealers are turning their back on the customer. Some customers may comment on black smoke, rough idle and minimal misfires on start up only. The most recently reported issues are listed below. I unhooked the negative cable from the battery. Welcome to the Subaru Check Engine Light codes page. Started and ran the second time, but did not idle high like it usually does when cold. How do we adjust an engine’s idle speed? In the past, adjusting an engine’s idle speed was easy. My Lights keep flashing after replacing the battery. Terry's Talon Troubleshooting Tips #3 - Fast Idle (aka. If it is at 700 RPM, then it has no issues. After resetting my battery terminals yesterday while wiring some switches, I turned my truck on and it immediately stalled and died. it is possable that all you need is a ecm reflash most all dealers can do this and it should not cost any more then a hour of time (trust me i work at a subaru dealership) i my self have been reflashing for all the o2 codes any time i see a 420 code for which ther is no offical reflash and out of aprox 30+ cars only 1 has come back for a 420 code a second time good luck GM will fix the rough idle on some of its V-8-powered SUVs and pickup trucks. Cold stalling problems are the most common because the engine needs a richer fuel mixture to maintain idle speed until it warms up. The replacement battery is a 628 specification and the previous battery was a 631. Consequence: Replied by RyanS93 on topic 2002 Subaru Forester Misfire/Rough Running I guess I should clarify. Also the passenger side motor mount is a fluid filled mount and after time it will transfer engine viberation to the body. Note: An additive can sometimes, however, cause a rough idle problem. I have an intermittent rough idle issue. the engine died on me 4 times while going to work. No there is no improvement in rough idle. So I call my SUbaru dealer and he told me that I had to do the idle relearn with my 2010 Subaru Forester. 5 XT with an automatic transmission. Whether you need to test the condition of your car battery, fix your AC, or simply change your tires, learn how with these step-by-step tutorials. Rough idle. It was at 500rpm in park, and about 450-400rpm in drive/reverse. Started fine at the pump, drove about one and a half miles home and while in the garage I noticed a very rough idle, the whole car was shaking. I suspected the alternator, so I checked it out, but it's actually putting out 13. Just checked out the battery type, the previous owner is very tight and bought a 370 CCA RACQ battery (looks quite small), so that wouldn't be helping things, in addition to the short trips. 8 and 3. Subaru Check Engine Light and Code # P0420 Explained By Justin Stobb on January 18, 2011 in All Wheel Drive Auto News , Featured , Subaru Repair Seattle If the check engine light comes on in your Subaru there is always a corresponding code set in the computers memory. Problem just started today, mileage about 130k. Note: Symptoms may involve several potential failures, so diagnosis should start with a general perusal of this entire section. yes 11 miles same day back 20452 - 06/08/2016 - Check Engine Light - O2 and Battery If Subaru production made a change from composite back to XV Crosstrek HYBRID(Auto start-stop / EV mode)Check Sheet When a customer experienced difficulties in getting into idle stop (Auto start-stop) mode and/or EV mode, please obtain following information for FHI's investigation. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. Itook the car back to the dealer on sept. Because we change the oil between major services ourselves, the service department employees tried to blame us alleging that we used diesel fuel instead of gas, did not change the engine oil on time, and so on. It’s both useful and empowering to know how to fix your own car. Other systems affecting idle quality include the ignition system and compression. Gday, first check your fuses may have blown one and its a 2 dollar fix, If your car is carby fed, check the cables running back from the battery there probally fried, if so you will have to replace them, Had it happen to a friends magna and my 4b, and that was the prob, not hard to fix if you buy more cable to whatever lenght, cut it back in the car and re wire the new cable in its place re NUMBER: 11-161-16 DATE: 02/29/16 APPLICABILITY: 2015 WRX and Forester 2. 1 year free service. If any of these is lacking, the engine may stall. This can be a result of a malfunctioning alternator, a battery going bad, or a number of Subaru Trouble Code Info Retrieving Trouble Codes 96 & later are OBD2 systems There are self-diagnositic connectors on all models, when connected with the key ON (engine off), flash trouble codes on the LED light of the oxygen moniter of the ECU. But on a Subaru with their funny horizontal boxer engine, it is set at mid-stroke. We’ve found that if you let the car idle, it will accomplish this much faster, generally in 5-10 minutes. Detailed information on troubleshooting and repairing a P0505 DTC code which refers to a malfunction of the IAC (Idle Air Control) system. 2006 Subaru Forester won't idle correctly after changing battery I had my battery changed on my 2006 Subaru (manufacture date is July 05 on my car) and when I started it it was hard to start/turn over but it eventually did. important this system doesn't work if the car's battery is dead. The purpose of a throttle position sensor is to keep your car working by controlling the throttle. MechanicAdvice) submitted 2 years ago * by Draco_Red I've never really done much wrenching myself, but figured that I would try and change the head gaskets on my Subaru myself. Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder. Anyway, sounds like a problem with the idle air control (or whatever Subaru calls it). After that half-hour, when you are stopped at home or in a safe place, do a little test. You will need to re-learn the idle for the vehicle to get it to idle high Have a rough idling problem with engine on and trans in park with the AC running. Running Problems. 000 km and give it back at 380. It has no issues if it is at 500RPM in Neutral. Engine Idle Is Too Low Or Stalls Dirty Throttle Body. Car is a 2005 Outback with 2. It came good after while. This happened right after repla 2011 needs a new battery. ROUGH IDLE, CAM POSITION OR MISFIRE DTCS. Your engine idles when it is a stationary and in this position the engine normally produces around 1000rpm. Step 2 - Sometime a high idle condition can occur after a new battery has been installed, this is the opposite of the engine stalling but share the same malfunction, the computer is unable to control idle speed. Diagnosing RPM Idle Issues in a MINI Cooper Posted on May 6, 2016 by Insourcelife Back in 2012 I bought a 2009 MINI Cooper hatchback to replace the aging 2004 BMW 330i ZHP that was rapidly approaching the point where a bunch of expensive work would be needed on a regular basis. Simply drive the vehicle for a short time for the idle to subside to normal operation. A PCV valve helps relieve pressure in the crankcase. It begins the misfires very shortly after starting, so I don't think it's enough time for it to go into closed loop with the O2 sensor in the equation. These engines are experiencing a problem with carbon build-up on the top side of the intake valves. it idles a little rough. The idle of a car engine is kind of like a human heartbeat: You can tell what shape it's in just by listening. au Subaru Outback Limited 5sp dual To restore a good idle after a battery change I find the best way Just because your car is old doesn’t mean it’s outdated. Difficulty Starting, Rough Idle, Cam Position or Misfire DTCs P0340, P0341, P0345, P0346, P0365, P0366, P0390, P0391, P0301, P0302, P0303 or P0304 – 2011-2014 Subaru Rough idle in vehicles with Gasoline Direct- Injected engines. Please discard PI1223A. My mech called me and advised to start by replacing the plug wires. The ECU now has default numbers in its trim memory - it has to adjust them to match the tune of your engine and its sensors and actuators